Electric motor



(No Model.)

J. E. EMLBY.A

ELECTRIC MOTOR.

UNITED STATES PATENT OFFICE.s

JAMES E. EMLEY, OF VEATHERFORD, TEXAS.

ELECTRIC MOTOR.

SPECIFICATION forming part of Letters Patent No 344,262, dated inne 22,18 G.

Application tiled May 9, 1885.

To all whom it may concern:

Be it known that I, J AMES E. EMLEY, a citizen of the United States,residing at Weatherford, in the county of Parker and State of Texas,have invented certain new and useful Improvements in Electric Motors;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings,and to letters or figures of referencemarked thereon, which form a part of this speeilication.

Figure l ofthe drawings is a representation of a front elevation. Fig. 2is a transverse section online .r x, Fig. l.

The invention consists in improvements in electric motors; and itconsists, essentially, in such combination of an automaticcircuitbreaker with a bar of soft iron secured centrally on a shaftjournaled in bearings secured to the motor-frame and rotating within acoil or helix that the rotation of said bar will continuously make andbreak circuit, and that the action of the circuit-breaker will cause thecontinuous rotation of the bar.

It further consists of certain details of construction and arrangementof parts,hereinafter described, and pointed out in the appended claims.

Referring by letter to the accompanying drawings, A designates a coil orhelix of insulated wire made in the ordinary well-known manner, whichcoil is very broad longitudinally to the motor and narrow transverselyto the same, for a reason hereinafter evident. rIhe coil is alsoseparated into equal upper and lower parts, to allow the shaft G,hereinafter described, to pass through without twisting the wires ofthesame.

B is a har of soft iron situated within the coil A, and secured at itscenter on the shaft C, which passes transversely between the npper andlower parts of the coil A,and has end bearings, D D, in uprights orstandards (l el, rising from the frame ot' the motor in each side of thecoil.

E is a metallic block secured to one end of the shaft outside of one ofits bearings. The block E lies in a plane that forms a proper angle withthe plane in which the har B lies.

Serial No. 164,922.

rNo modrl.)

c c are metallic spring-strips, which are secured at their lower ends tometallic blocks c', fixed to the base H of the motor. The upper ends, c2c?, of the strips care bent toward each other, and then verticallydownwarthand are slightly nearer together than the length of the blockE. The said blocks and strips form together the circuit-breaker E, asshown.

F and G are the binding-posts for the ciicuit-wires X' Xtoand from thebattery. The electric current flows from the binding-post F through thewire y, Fig. 2, to the helix A, and passes through the same and throughthe wire y to the block e', adjacent to the binding-post F. It thenpasses up the strip c, connected with said block, through the block E',down the opposite strip e to the block c on that side, and thencethrough the wire yf, Fig. l, to the binding-post G, whence it returns tothe hattery. The block E has its ends made on the arcs ofacircle, ofwhich the axial line of the shaft Gis the center, so that in turningbetween the ends c2 the latter will not be pressed farenough apart tocause unnecessary friction. rllhe said block is set at such an anglewith the bar B, Fig. l, that when the latter isapproachingaverticalposition theeircuitwillbebroken, and will remain sotill the end of the bar that was lowest rises to a higher position thanthe other end.

It is evident from the above that when the current is flowing the bar Bmust bein an inclined position. Then the circuit is eo1n pleted and thecurrent iiowing through the circuit-breaker and the helix, the latter inthe well-known manner causes the bar B to become magnetized and assume aposition in the axial line of the helix. This motion causes the block Eto rotate, and its ends to separate from the strips c c, so as to breakthe circuit. The bar then is demagnetized, and has acquired sufficientmomentum to carry it far enough around to again close the circuit, whenit is again magnet-ized and the former action repeated. Thus the circuitis alternately closed and broken, and the bar B continuously ro tated. Apulley may loe placed on the end of the shaft opposite theeircnit-breaker,and any Y light mechanism driven therefrom.

Instead of the helix being separated with two coils, there may he onecoil only, with the IOO bearings so arranged as to leave openings forthe shaft G to pass through. The bar B at no time touches any part ofthe surrounding helix, but is actuated by the electric currenttherethrough.

Having described this. invention, what I 1. In an electric motor, a barof iron rotating within a helix in electric circuit, in combination witha circuit-breaker caused by the rotation ot' said bar to alternatelymake and break the circuit through the helix, and thereby keep the`shaftrotating, as sct forth.

2. The combination7 in an electric motor, with a bar of soft ironsecured to a shaft and rotating within a helix in electric circuit-,of acircuit-breaker secured on said shaft at an an? gle with the said bar,and arranged to break circuit when the bar is approaching the axial lineof the helix and close circuit when the 2o previously lower end of saidbar has rotated above the central longitudinal lin'e ofthe helix,substantially as speciiied.

3. In an electric motor, the combination of the helix A, separated intoupper and lower 25 equal coils, the shaft C,thc bar of soft iron B, andthe circuit-breaker E, composed rof the metallic block E and themetallic strips e e, substantially as specified.

In testimony whereof I affix my signature in 3o presence ol" twowitnesses.

JAMES E. EMLEY.

Vitnesses:

XV. J. CANON, J. L. FUsToN.

